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nuttx-apps/nshlib/nsh.h
patacongo 6be31c51a0 Remove unused header files; eliminate warnings 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3731 42af7a65-404d-4744-a932-0658087f49c3
2011-06-21 23:53:00 +00:00

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/****************************************************************************
* apps/nshlib/nsh.h
*
* Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __APPS_NSHLIB_NSH_H
#define __APPS_NSHLIB_NSH_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <errno.h>
#ifdef CONFIG_NSH_CONSOLE
# include <stdio.h>
#endif
/****************************************************************************
* Definitions
****************************************************************************/
/* The telnetd interface and background commands require pthread support */
#ifdef CONFIG_DISABLE_PTHREAD
# undef CONFIG_NSH_TELNET
# ifndef CONFIG_NSH_DISABLEBG
# define CONFIG_NSH_DISABLEBG 1
# endif
#endif
/* Telnetd requires networking support */
#ifndef CONFIG_NET
# undef CONFIG_NSH_TELNET
#endif
/* One front end must be defined */
#if !defined(CONFIG_NSH_CONSOLE) && !defined(CONFIG_NSH_TELNET)
# error "No NSH front end defined"
#endif
/* Verify support for ROMFS /etc directory support options */
#ifdef CONFIG_NSH_ROMFSETC
# ifdef CONFIG_DISABLE_MOUNTPOINT
# error "Mountpoint support is disabled"
# undef CONFIG_NSH_ROMFSETC
# endif
# if CONFIG_NFILE_DESCRIPTORS < 4
# error "Not enough file descriptors"
# undef CONFIG_NSH_ROMFSETC
# endif
# ifndef CONFIG_FS_ROMFS
# error "ROMFS support not enabled"
# undef CONFIG_NSH_ROMFSETC
# endif
# ifndef CONFIG_NSH_ROMFSMOUNTPT
# define CONFIG_NSH_ROMFSMOUNTPT "/etc"
# endif
# ifdef CONFIG_NSH_INIT
# ifndef CONFIG_NSH_INITSCRIPT
# define CONFIG_NSH_INITSCRIPT "init.d/rcS"
# endif
# endif
# undef NSH_INITPATH
# define NSH_INITPATH CONFIG_NSH_ROMFSMOUNTPT "/" CONFIG_NSH_INITSCRIPT
# ifndef CONFIG_NSH_ROMFSDEVNO
# define CONFIG_NSH_ROMFSDEVNO 0
# endif
# ifndef CONFIG_NSH_ROMFSSECTSIZE
# define CONFIG_NSH_ROMFSSECTSIZE 64
# endif
# define NSECTORS(b) (((b)+CONFIG_NSH_ROMFSSECTSIZE-1)/CONFIG_NSH_ROMFSSECTSIZE)
# define STR_RAMDEVNO(m) #m
# define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m)
# define MOUNT_DEVNAME MKMOUNT_DEVNAME(CONFIG_NSH_ROMFSDEVNO)
#else
# undef CONFIG_NSH_ROMFSMOUNTPT
# undef CONFIG_NSH_INIT
# undef CONFIG_NSH_INITSCRIPT
# undef CONFIG_NSH_ROMFSDEVNO
# undef CONFIG_NSH_ROMFSSECTSIZE
#endif
/* This is the maximum number of arguments that will be accepted for a command */
#define NSH_MAX_ARGUMENTS 6
/* strerror() produces much nicer output but is, however, quite large and
* will only be used if CONFIG_NSH_STRERROR is defined.
*/
#ifdef CONFIG_NSH_STRERROR
# define NSH_ERRNO strerror(errno)
# define NSH_ERRNO_OF(err) strerror(err)
#else
# define NSH_ERRNO (errno)
# define NSH_ERRNO_OF(err) (err)
#endif
/* Maximum size of one command line (telnet or serial) */
#ifndef CONFIG_NSH_LINELEN
# define CONFIG_NSH_LINELEN 80
#endif
/* The following two settings are used only in the telnetd interface */
#ifndef CONFIG_NSH_IOBUFFER_SIZE
# define CONFIG_NSH_IOBUFFER_SIZE 512
#endif
/* As threads are created to handle each request, a stack must be allocated
* for the thread. Use a default if the user provided no stacksize.
*/
#ifndef CONFIG_NSH_STACKSIZE
# define CONFIG_NSH_STACKSIZE 4096
#endif
/* The maximum number of nested if-then[-else]-fi sequences that
* are permissable.
*/
#ifndef CONFIG_NSH_NESTDEPTH
# define CONFIG_NSH_NESTDEPTH 3
#endif
/* Define to enable dumping of all input/output buffers */
#undef CONFIG_NSH_TELNETD_DUMPBUFFER
#undef CONFIG_NSH_FULLPATH
/* Make sure that the home directory is defined */
#ifndef CONFIG_LIB_HOMEDIR
# define CONFIG_LIB_HOMEDIR "/"
#endif
/* Method access macros */
#define nsh_clone(v) (v)->clone(v)
#define nsh_release(v) (v)->release(v)
#define nsh_write(v,b,n) (v)->write(v,b,n)
#define nsh_linebuffer(v) (v)->linebuffer(v)
#define nsh_redirect(v,f,s) (v)->redirect(v,f,s)
#define nsh_undirect(v,s) (v)->undirect(v,s)
#define nsh_exit(v) (v)->exit(v)
#ifdef CONFIG_CPP_HAVE_VARARGS
# define nsh_output(v, fmt...) (v)->output(v, ##fmt)
#else
# define nsh_output vtbl->output
#endif
/* Size of info to be saved in call to nsh_redirect */
#define SAVE_SIZE (sizeof(int) + sizeof(FILE*) + sizeof(bool))
/* Stubs used when working directory is not supported */
#if CONFIG_NFILE_DESCRIPTORS <= 0 || defined(CONFIG_DISABLE_ENVIRON)
# define nsh_getfullpath(v,p) ((char*)(p))
# define nsh_freefullpath(p)
#endif
/****************************************************************************
* Public Types
****************************************************************************/
enum nsh_parser_e
{
NSH_PARSER_NORMAL = 0,
NSH_PARSER_IF,
NSH_PARSER_THEN,
NSH_PARSER_ELSE
};
struct nsh_state_s
{
uint8_t ns_ifcond : 1; /* Value of command in 'if' statement */
uint8_t ns_disabled : 1; /* TRUE: Unconditionally disabled */
uint8_t ns_unused : 4;
uint8_t ns_state : 2; /* Parser state (see enum nsh_parser_e) */
};
struct nsh_parser_s
{
#ifndef CONFIG_NSH_DISABLEBG
bool np_bg; /* true: The last command executed in background */
#endif
bool np_redirect; /* true: Output from the last command was re-directed */
bool np_fail; /* true: The last command failed */
#ifndef CONFIG_NSH_DISABLESCRIPT
uint8_t np_ndx; /* Current index into np_st[] */
#endif
#ifndef CONFIG_NSH_DISABLEBG
int np_nice; /* "nice" value applied to last background cmd */
#endif
/* This is a stack of parser state information. It supports nested
* execution of commands that span multiple lines (like if-then-else-fi)
*/
#ifndef CONFIG_NSH_DISABLESCRIPT
struct nsh_state_s np_st[CONFIG_NSH_NESTDEPTH];
#endif
};
struct nsh_vtbl_s
{
/* This function pointers are "hooks" into the front end logic to
* handle things like output of command results, redirection, etc.
* -- all of which must be done in a way that is unique to the nature
* of the front end.
*/
#ifndef CONFIG_NSH_DISABLEBG
FAR struct nsh_vtbl_s *(*clone)(FAR struct nsh_vtbl_s *vtbl);
void (*addref)(FAR struct nsh_vtbl_s *vtbl);
void (*release)(FAR struct nsh_vtbl_s *vtbl);
#endif
ssize_t (*write)(FAR struct nsh_vtbl_s *vtbl, FAR const void *buffer, size_t nbytes);
int (*output)(FAR struct nsh_vtbl_s *vtbl, const char *fmt, ...);
FAR char *(*linebuffer)(FAR struct nsh_vtbl_s *vtbl);
void (*redirect)(FAR struct nsh_vtbl_s *vtbl, int fd, FAR uint8_t *save);
void (*undirect)(FAR struct nsh_vtbl_s *vtbl, FAR uint8_t *save);
void (*exit)(FAR struct nsh_vtbl_s *vtbl);
/* Parser state data */
struct nsh_parser_s np;
};
typedef int (*cmd_t)(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
/****************************************************************************
* Public Data
****************************************************************************/
extern const char g_nshgreeting[];
extern const char g_nshprompt[];
extern const char g_nshsyntax[];
extern const char g_fmtargrequired[];
extern const char g_fmtarginvalid[];
extern const char g_fmtargrange[];
extern const char g_fmtcmdnotfound[];
extern const char g_fmtnosuch[];
extern const char g_fmttoomanyargs[];
extern const char g_fmtdeepnesting[];
extern const char g_fmtcontext[];
extern const char g_fmtcmdfailed[];
extern const char g_fmtcmdoutofmemory[];
extern const char g_fmtinternalerror[];
#ifndef CONFIG_DISABLE_SIGNALS
extern const char g_fmtsignalrecvd[];
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/* Initialization */
#ifdef CONFIG_NSH_ROMFSETC
extern int nsh_romfsetc(void);
#else
# define nsh_romfsetc() (-ENOSYS)
#endif
#ifdef CONFIG_NET
extern int nsh_netinit(void);
#else
# define nsh_netinit() (-ENOSYS)
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT)
extern int nsh_script(FAR struct nsh_vtbl_s *vtbl, const char *cmd, const char *path);
#endif
/* Architecture-specific initialization */
#ifdef CONFIG_NSH_ARCHINIT
extern int nsh_archinitialize(void);
#else
# define nsh_archinitialize() (-ENOSYS)
#endif
/* Message handler */
extern int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline);
/* Application interface */
#ifdef CONFIG_NSH_BUILTIN_APPS
extern int nsh_execapp(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd,
FAR char **argv);
#endif
/* Working directory support */
#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON)
extern FAR const char *nsh_getcwd(void);
extern char *nsh_getfullpath(FAR struct nsh_vtbl_s *vtbl, const char *relpath);
extern void nsh_freefullpath(char *relpath);
#endif
/* Debug */
extern void nsh_dumpbuffer(FAR struct nsh_vtbl_s *vtbl, const char *msg,
const uint8_t *buffer, ssize_t nbytes);
/* Shell command handlers */
#ifndef CONFIG_NSH_DISABLE_ECHO
extern int cmd_echo(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_EXEC
extern int cmd_exec(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_MB
extern int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_MH
extern int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_MW
extern int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_FREE
extern int cmd_free(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_PS
extern int cmd_ps(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_XD
extern int cmd_xd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST)
extern int cmd_test(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
extern int cmd_lbracket(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
# ifndef CONFIG_NSH_DISABLE_CAT
extern int cmd_cat(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_CP
extern int cmd_cp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_DD
extern int cmd_dd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_LS
extern int cmd_ls(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# if CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT)
# ifndef CONFIG_NSH_DISABLE_SH
extern int cmd_sh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# endif /* CONFIG_NFILE_STREAMS && !CONFIG_NSH_DISABLESCRIPT */
# ifndef CONFIG_DISABLE_MOUNTPOINT
# ifndef CONFIG_NSH_DISABLE_LOSETUP
extern int cmd_losetup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_MKFIFO
extern int cmd_mkfifo(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifdef CONFIG_FS_READABLE
# ifndef CONFIG_NSH_DISABLE_MOUNT
extern int cmd_mount(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_UMOUNT
extern int cmd_umount(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifdef CONFIG_FS_WRITABLE
# ifndef CONFIG_NSH_DISABLE_MKDIR
extern int cmd_mkdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_MKRD
extern int cmd_mkrd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_RM
extern int cmd_rm(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_RMDIR
extern int cmd_rmdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# endif /* CONFIG_FS_WRITABLE */
# endif /* CONFIG_FS_READABLE */
# ifdef CONFIG_FS_FAT
# ifndef CONFIG_NSH_DISABLE_MKFATFS
extern int cmd_mkfatfs(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# endif /* CONFIG_FS_FAT */
# endif /* !CONFIG_DISABLE_MOUNTPOINT */
# if !defined(CONFIG_DISABLE_ENVIRON)
# ifndef CONFIG_NSH_DISABLE_CD
extern int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_PWD
extern int cmd_pwd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# endif /* !CONFIG_DISABLE_MOUNTPOINT */
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_NET)
# ifndef CONFIG_NSH_DISABLE_IFCONFIG
extern int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#if defined(CONFIG_NET_UDP) && CONFIG_NFILE_DESCRIPTORS > 0
# ifndef CONFIG_NSH_DISABLE_GET
extern int cmd_get(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_PUT
extern int cmd_put(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#endif
#if defined(CONFIG_NET_TCP) && CONFIG_NFILE_DESCRIPTORS > 0
# ifndef CONFIG_NSH_DISABLE_WGET
extern int cmd_wget(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#endif
#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_PING) && \
!defined(CONFIG_DISABLE_CLOCK) && !defined(CONFIG_DISABLE_SIGNALS)
# ifndef CONFIG_NSH_DISABLE_PING
extern int cmd_ping(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#endif
#endif
#ifndef CONFIG_DISABLE_ENVIRON
# ifndef CONFIG_NSH_DISABLE_SET
extern int cmd_set(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_UNSET
extern int cmd_unset(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#endif /* CONFIG_DISABLE_ENVIRON */
#ifndef CONFIG_DISABLE_SIGNALS
# ifndef CONFIG_NSH_DISABLE_KILL
extern int cmd_kill(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_SLEEP
extern int cmd_sleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_USLEEP
extern int cmd_usleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
# endif
#endif /* CONFIG_DISABLE_SIGNALS */
#endif /* __APPS_NSHLIB_NSH_H */
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